mcrypt_enc_is_block_mode

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_enc_is_block_mode — Checks whether the opened mode outputs blocks

Description

bool mcrypt_enc_is_block_mode ( resource $td )

Tells whether the opened mode outputs blocks (e.g. TRUE for cbc and ecb, and FALSE for cfb and stream).

Parameters

td

The encryption descriptor.

Return Values

Returns TRUE if the mode outputs blocks of bytes or FALSE if it outputs bytes.